JSF Tutorial - JSF Remove Example

We can use the "ui:remove" tag to define the content you want to remove.

By using the "ui:remove" tag we can think the tags wrapped by "ui:remove" tag is commented out

   
<ui:remove>
<h:commandButton type="button" 
  value="#{msg.buttonLabel}" />
</ui:remove>

becomes

<!--
<h:commandButton type="button" 
  value="#{msg.buttonLabel}" />
</ui:remove>       
-->

The following code shows how to use the ui:remove tag.

Example

The following code is from demo.xhtml.

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"   
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:ui="http://java.sun.com/jsf/facelets">
    <h:body>
      <ui:remove>
      <h:commandButton type="button" 
        value="#{msg.buttonLabel}" />
      </ui:remove>       
    </h:body>
</html>

The following code is from UserBean.java.

package com.java2s.common;

import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
 
@ManagedBean(name="msg")
@SessionScoped
public class UserBean implements Serializable{

  String buttonLabel = "Submit";

  public String getButtonLabel() {
    return buttonLabel;
  }

  public void setButtonLabel(String buttonLabel) {
    this.buttonLabel = buttonLabel;
  }

}

Download Remove.zip

To RUN

Copy the generated WAR file from the target folder to Tomcat deployment folder and run Tomcat-Install-folder/bin/startup.bat.

After Tomcat finish starting, type the following URL in the browser address bar.

http://localhost:8080/simple-webapp/demo.xhtml